The only difference between the 2 versions is that one model 400 reaches 400m and the 600 reaches 600m.
- Fully multi-coated optical system - BK-7 prisms
- 6x magnification and an adjustable dioptre
- Ergonomically designed to fit in your hand
- Lightweight and compact construction
- Standard/Rain/Hunt mode - accurate to +/- 1m
- Auto shut off battery save feature
Standard mode measures the straight line distance to the target you are aiming at. When there is nothing displayed in the Targeting Modes area of the on-screen display (to the left of the distance) you are in standard mode. If you hold the ON button while in standard mode the range finder will continuously scan so you can move around and get constant updates of the distance.
Rain mode measures the straight line distance to the target, but ignores any interference from falling raindrops. The target distance must be more than 30m / 33yards away.
Hunt mode measures the straight line distance to the target, but ignores any interference from long grass or brush that stands between you and the target, ideal for measuring the distance to a deer that’s walking through long grass or woodland.
Range (Distance): 600 = 600m 400 = 400m
Objective: 21mm / 0.8″
Lens Coating: Multi Anti-Reflective
Angle Range: N/A
Field of View: @1000m /ft @1000yds 140m / 420ft
Field of View Angle: 8°
Eye Relief: 12mm / 0.5″
Battery: CR2 - 3V
Operating Temperature: -10° to 40°
Waterproof Rating: IPx4
Weight: 141g / 5oz